ci: s390x: fix 'cannot find libc' error

Signed-off-by: Pedro Tammela <pctammela@gmail.com>

(backport <#4317>)
(cherry picked from commit 4776e0f)

Author: tammela

ci/linux-s390x.sh

@@ -6,8 +6,8 @@ mkdir -m 777 /qemu
 cd /qemu
 
 curl --retry 5 -LO https://github.com/qemu/qemu/raw/HEAD/pc-bios/s390-ccw.img
-curl --retry 5 -LO http://ftp.debian.org/debian/dists/testing/main/installer-s390x/20230607/images/generic/kernel.debian
-curl --retry 5 -LO http://ftp.debian.org/debian/dists/testing/main/installer-s390x/20230607/images/generic/initrd.debian
+curl --retry 5 -LO http://ftp.debian.org/debian/dists/testing/main/installer-s390x/20241227/images/generic/kernel.debian
+curl --retry 5 -LO http://ftp.debian.org/debian/dists/testing/main/installer-s390x/20241227/images/generic/initrd.debian
 
 mv kernel.debian kernel
 mv initrd.debian initrd.gz

ci/run.sh

@@ -87,7 +87,6 @@ test_flags="--skip check_style"
 case "$target" in
     # Only run `libc-test` 
     # FIXME(android): unit tests fail to start on Android
-    # FIXME(s390x): unit tests fail to locate glibc
     *android*) cmd="$cmd --manifest-path libc-test/Cargo.toml" ;;
     *s390x*) cmd="$cmd --manifest-path libc-test/Cargo.toml" ;;
     # For all other platforms, test everything in the workspace

src/unix/linux_like/linux/gnu/b64/mod.rs

@@ -77,7 +77,8 @@ s! {
             target_arch = "mips64r6",
             target_arch = "powerpc64",
             target_arch = "riscv64",
-            target_arch = "sparc64"
+            target_arch = "sparc64",
+            target_arch = "s390x",
         )))]
         __reserved: crate::__syscall_ulong_t,
         pub sem_ctime: crate::time_t,
@@ -88,7 +89,8 @@ s! {
             target_arch = "mips64r6",
             target_arch = "powerpc64",
             target_arch = "riscv64",
-            target_arch = "sparc64"
+            target_arch = "sparc64",
+            target_arch = "s390x",
         )))]
         __reserved2: crate::__syscall_ulong_t,
         pub sem_nsems: crate::__syscall_ulong_t,